Organic-functionalized sodalite nanocrystals and their dispersion in solvents

被引：22

作者：

Li, Dan

Yao, Jianfeng

Wang, Huanting ^{[1
]}

Hao, Na

Zhao, Dongyuan

Ratinac, Kyle R.

Ringer, Simon P.

机构：

[1] Monash Univ, Dept Chem Engn, Clayton, Vic 3800, Australia

[2] Univ Sydney, Australian Key Ctr Microscop & Microanal, Sydney, NSW 2006, Australia

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2007年 / 106卷 / 1-3期

基金：

澳大利亚研究理事会;

关键词：

sodalite; silicalite; organic functionalized; nanocrystals; dispersion;

D O I：

10.1016/j.micromeso.2007.03.006

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hydroxy-sodalite nanocrystals with organic functional groups (i.e., =Si-(CH3)(CH2)(3)NH2, denoted Sod-N, or Si-CH3, denoted Sod-C) were synthesized by the direct transformation of organic-functionalized silicalite nanocrystals. The chemical structure of organic-functionalized sodalite nanocrystals was confirmed by Si-29 MAS NMR spectroscopy. Gas sorption results showed that the sodalite nanocrystals contained uniform pore channels that were accessible to hydrogen, but inaccessible to nitrogen, as expected. The BET surface areas are calculated to be 22.8, 19.6 and 19.1 m(2)/g for plain sodalite nanocrystals (Sod), Sod-N, and Sod-C, respectively; similarly, Sod-N and Sod-C exhibited slightly lower hydrogen adsorption than Sod. The dispersion of Sod-N and Sod-C in organic solvents was favored by the presence of organic functional groups. Therefore, the organic-functionalized sodalite nanocrystals prepared in this work may be very useful for fabricating zeolite nanostructures and sodalite-polymer nanocomposite membranes. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：262 / 267

页数：6

共 20 条

[1] Synthesis and proton conductivity of sulfonic acid functionalized zeolite BEA nanocrystals [J].